Method and means for testing ink requirements



May 27, 1941. T F. w. HOCH 2,243,674 METHOD AND MEANS FOR TESTINQ INK REQUIREMENTS F'ile d July 27, 1939 4 2 Sheets-Sheet 1 INVENT OR.

E ed WT 1506/2 M ATTORNEY.

May 27, 1941. F. w. HOCH- 2,243,674

METHOD- AND MEANS FOR TESTING INK REQUIREMENTS Filed July 27, 1939 2 Sheets-Sheet 2 .0002 .0003 .0004 .0005 .0006 .0007 -.0O08 LOOOQIOOI HOURS T0 DRY v INK FILM ARE'A 7H/CKNf55 1v SQUARE l/V.

INK COMPANY lO-LB. BLUE #1620 0 200 000 =+0-CU. IN; 000/ 400 000 INVENTOR.

M ATTORNEY. 0

ink can at once determine the ink film thickness of strokes of ink each of a different gauge or PatehtedMsy Z' I, 1941 Q v UNITED STAT ES {PATENT OFFICE METHOD margarine r-on gas'rnve nu:

Fred W. Hoch, Forest mm, a. Y. Application July 21, 1939, Serial No. 286,763

2 Claims. (01. 73-51) This invention relates to my invention de- Figure 6 is a perspective view of a cylindrical scribed and claimed in U. 8. Letters Patent No. shaped embodiment to be used in place of the 2,167,652, in which a method was disclosed for squareshaped embodiment shown in Figure 1; ascertaining the coverage of printing ink, which Figure 7 is a perspective of still another emconsists in taking a sample of theink, applying bodinient in the form of a. grooved roller, in order the ink without pressure 'in separated film layto apply gauges of ink to paper strips or samers, each of different and determinable thickplea, only those grooves being shown which, howness, on a trial sheet, and selecting the desired ever, are representative of aplurality or a series thickness according to color coverage and desuch as shown in' Figure 3, it carried higher to termining the square inch coverage of the se- '10 .001 or above: and lected thickness of ink by dividing the amount oi Figure 8 is a plan view of the exterior of either film thickness into a unit of cubical contents of the square shaped container or the cylindrically the ink, as more fully described and claimed in shaped container, or may be a fiat label to be said patent. applied thereto. 1 I

The present invention has for its object to pro- Similar characters of reference indicate correvide a convenient means to carry out said procsponding views. ess, and also has for its object to provide an im- Referring to drawings, and more particularly proved label process whereupon the user of the to Figure 8, there is shown a plurality or series corresponding to a certain area in square inches, depth, preferably from .0001 in. to .001 in., and of the number of hours to dry, the amount in the the same basic color though of diiferent shades. can in cubical ifihes, etc., said label giving also Preferably, dueto the variant of thicknesses, the the actual .thic ess, and hence color at said time for drying varies according to the thickthickness. 1' p nesses. For a given quantity of color, say 10 1b., The invention consists of the combination upon which equals 40 cu. in., as explained in the aforea visible aura of a plurality of ink markings said patent, a certain film thickness corresponds oi diiierent cknesses with attached indicato a certain area in square inches of coverage, so, tions of said thicknesses, together with the time for instance, for an ink or paint coverage of A3001 required for drying the same, and indications in. in film thickness, an area coverage of access correspondingto areain square inches covered by square inches is obtained, and of the shade of ink in any of .the film thicknesses indicated, and, color as indicated in the plurality of applied colfurther, indications asto the quantity and color ors, namely, the shade corresponding to that asor sales number, and cubic contents, and with sociated with .0001 in. At this shade of color and means whereby the indications on the label may at this film thickness, the area covered will be be readily tested. Such means may be either 400,000 square inches of .0001'thickness and the part of the container of the ink to which the Just time to dry about 10 hours. The film thicknesses mentioned indications have been applied, or they in height or gauge of ink being given as associmaybe separate therefrom. ated with the color-shade bands portraying the The invention will be further described, em'-. true color shade, as shown in Figure 8; the corbodiments thereofshown in the drawings, and 40 responding area in square inches as representathe invention will be further pointed out in the tive of the coverage of the ink at any certain film claims. p a thickness, could be associated with the colored In the accompanying drawings: bands, instead of being shown in a separate table, Figure 1 is a perspective view or the preferred in which columns of film thickness and areas in means for gauging the ink and spreading it upon square inches as coverage, are shown vertically a test paper; side by side.

Figure 2 is a vertical section taken on line 2-2 The can or container upon which the label of Figure l: shown in Figure 8 appears, may be madein the Figure 3 is a drawing showing a plurality of form of the embodiment of Figure l, or of Figdiiferent gauges of ink applied to different test ure 8, or, the embodiments of Figures 1 and 6 papers; may be made separately as testing members. In Figure 4 is a plan view of the first gauge of ink Figure 1 is shown a container of cubical form shown in Figure 3; having as an example a volume of 1 cubic inch.

Figure 5 is a plan view of the last gauge of ink Upon the top and bottom theedges are provided shown in Figure 3; with cutout portions of a certain length and depth.- The shallowest cutout is marked .0001,

the next is .0002. the next .0003, and the deepest cutout is marked .0004. The opposed bottom surrace at its edges is marked from the shallowest/ .0005 to the next .0006, and those not visible are .0007 and the deepest .0008.

when it is desired to test the ink then, a lump,

.0005 depth which will give an area coverage of 80,000 square inches as stated in e of Figure 8; The opposed cutout I2 is o! .0007 in. depth and it moved opposite to arrow l3 it will give a coverage or 57,143 square inches as shown by gin Figure 8. When the test cube is moved in the direction oi the arrow It, the ink or paint lump I placed immediately in front of the cutout H, is applied to the paper strip II, to a depth corresponding to the example "e" in Figure 3. Thereby. the depth of ink determines the shade of color. It satisiactory to the eye, reference is made-to the collocation shown in Figure 8, to ascertain the hours to dry, namely, 22 hours to dry. Orreference can be made to the colors in Figure 8 where it is seen that this depth will cover an area of 80,000 in square inches, with 40 cu. in. contents, or 10 lbs. of paint or ink.

In the use or the test cube M at .0005 it will be noted that the test is made in the direction of the arrow l3, and no ink or paint being applied to the cutout l2, there is no conflict or over-' lapping or interference. The operation is the same with the cutouts ato "h" of Figure 3. In Figure 4 a test "a" is shown, and inFigure 5 a test W. Should it be desired to .use the test cube It for tests in depths beyond .0008 in. or the "h test of Figure 3, "i of the .0009 in. test, or 7" of the .001 in. test of Figure 8, then the vertical edges of the test cube l0 can be also provided with cutouts.

In the embodiment shown in Figure 6, the peripheries of the top and bottom of the cylindrical test mentor, are provided with cutouts, in the top with cutouts of .0001, .0002, .0003 and .0004 inches in depth, and in the bottom wall with cutouts .0006 in., .0005 in., .0007 in. and .0008 in., the latter three not being shown in Figure 6. The operation is the same as that described in connection with Figure 2. Here again. a container of any size can be provided with the cutouts as shown in the test cube I050! Figure 1, or in the cylindrical test member oiFigure 6. l

In Figure 7 is shown a simple form of test device. Two superposed rollers 3| and ti, geared less can be provided, more in the manner of Fig-' ure 8 from "a to "1". A sheet 01' will is placed between the two rollers 30 and il, moving in the direction or arrows l3, 40, the paper moving in the direction oi arrow 00. A lump of ink or paint I! is placed upon the roller 30 at the .0004 in. depth. and the handle "a moves the wheel 3', gears 32, 33. and rollers" and ii. Thereupon, a band or strip of ink or paint, corresponding to d in Figure 3 is. produced upon the paper ll. From this the shade and other deside'rata of the collocations shown in Fixure 8 can be determined.

From the foregoing it has been seen that means have been provided to enable tests of ink in regards to film thickness area in square inch coverage, time of drying, and the shade of the color to be-quickly made, and a container of definite cubical contents can be readily analyzed to determine these characterhtic indicia. Thus. a container of definite cubical contents as 40 cu. in. will have a coverage area in sq. in. as indicated in Figure 8, will have the drying time, and will have the depth colortone visible 0! each thickness of film.

. I have described variousembodiments of my invention, but changes may be made therein without departing from the spirit oi the inven tion as defined in the accompanying cl I claim: i 1. The method of testing ink reduirements which consists in repeatedly applying'to a sheet .of paper intended to be used in a printing job,

ink or varying and increasing film thicknesses, selecting that film thickness test best adapted for its printing characteristics including hours to dry, matching said selected test with one of a series of film thicknesses dispoud on 'a label each indicated with hours to dry and with a film thickness measurement and cortelated data indicating for the several film thicknesses thecov erage in area of square inches of said ink on said paper.

2. A device for the measurement of color tones of inks,which consists in a testing device having a hollow container for the ink tobe tested and provided with a' plurality of cutouts or slots at its perimeter, said slots having difierently sired depths, the size of each such opening being definitely gauged as a measuring means forallowing a desired quantity of ink to pass therethrough from the inside to the outside of the 1 container by a relative movement in one directogether by gears 32 and 38, are suitably supg 30 o! .0004, and 40 of .0005 inch depth. More or tion of the testing device across a testing surface placed iniuxtaposition therewith to form a certain thickness of ink film and a certain color tone shade on said testing surface, and in another direction oi. movement to form a diflerent thickness of ink film and a difierent color shade tone on said testing surface, each indicative of a predetermined drying time. from which the area of coverage in square inches of a definite cubical FRED W. HOCH. 

